rtc: jz4740: fix Wvoid-pointer-to-enum-cast warning

'type' is an enum, thus cast of pointer on 64-bit compile test with W=1
causes:

rtc-jz4740.c:352:14: error: cast to smaller integer type 'enum jz4740_rtc_type' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast]

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Alexandre Belloni <[e-mail]>

drivers/rtc/rtc-jz4740.c

···
 	if (!rtc)
 		return -ENOMEM;
 
-	rtc->type = (enum jz4740_rtc_type)device_get_match_data(dev);
+	rtc->type = (uintptr_t)device_get_match_data(dev);
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)